D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 1
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 2
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 3
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 4
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 5
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 6
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 7
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 8
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 9
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 10
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 11
D24V3F3 step-down converter : 3.3V 0.3A - zdjęcie 12

Step-Down Voltage Regulator D24V3F9 - 9V 0,3A - Pololu 2099

Index: PLL-01350

Step-down converter with 9 V output voltage. Maximum current up to 300 mA. Supply voltage in the range 10.5 V - 42 V.

PLN14.23
PLN14.23 tax excl.
Waiting time approx. 10-21 days
Waiting for delivery
30-day returns
Manufacturer: Pololu

Product Description: Polol D24V3F9 - 0.3A step-down 9V 0.3A step-down converter

A step-down converter used to power systems operating at 9 V. The system is designed for a wide range of input voltages from 3.8 V to up to 42 V (the minimum value depends on thedrop-out voltage). The module allows for a current consumption of up to 300 mA, which is sufficient to supply typical integrated circuits. We also offer versions with other output voltages and a higher current capacity of up to 600 mA.

D24V3F9 inverter outputs

The module has four outputs:

  • VIN- input voltage from the range of 10.5 V to 42 V, please pay attention to the drop-out value and shortvoltage pulses, which may damage the system
  • GND- ground potential
  • VOUT - output voltage
  • SHDN - providing a low state (logical zero) causes the system to switch to a low energy consumption state (about 20 uA). In order to start the system it is necessary to provide high state (logical one - voltage above 2.3 V). If the output will not be used, it can be connected to the neighboring VIN pin.

Przetwornica impulsowa step-up D24VxFx z wyprowadzeniami goldpin

The connectors are properly signed on the board. Outputs' Raster is 2.54 mm (popular goldpin connectors). The module can be plugged into acontact board, connected with wiresor soldered into a dedicated PCB.

On customer's request we can deliver a chip with goldpin connectors soldered. For this purpose, please leave information in the commentary to the order.

Efficiency of the circuit

Efficiency is defined as the ratio of output power to input power (Power out)/(Power in). This is a very important parameter when working with portable energy sources (batteries and accumulators), where the time of operation on one charging cycle counts. The efficiency of this pulse system is about 80 % - 90 %.

Voltage drop-out

The parameter referred to in the documentation asvoltag drop-outthennecessary for the proper functioning of the system,minimum difference between input and output voltage.For example, if the drop-out is 1 V and the desired output voltage is 5 V, the supply voltage should be higher than 6 V. The figures below show the drop-out voltage value for D24VxFx inverters.

Dangerous voltage pulses

When connecting the power supply to the module, dangerous, short, high amplitude eclectic impulses (so-called pins) may appear, which may permanently damage the system. According to Polol's tests, for voltages above 20V, the pins may have an amplitude of over 42V. In order to protect against this undesirable phenomenon it is recommended to solder a capacitor of at least 33uF as close as possible to the pins powering the converter.

Polol D24V3F9 inverter specification

  • Input voltage: 10.5* V to 42 V
  • Output voltage: 9 V
  • Maximum input current: 300 mA
  • Efficiency of 80 - 90 %
  • Switching frequency 550 kHz
  • Dimensions: 12 x 10 x 3 mm
  • Weight (without connectors): 0.5 g

* minimum value depending on drop-out voltage

Length 12 mm
Width 10 mm
Height 3 mm
Voltage to 10.5 V
Voltage from 42 V
Voltage output from 9.0 V
Output voltage to 9.0 V
Nominal output voltage 9.0 V
Current 0.3 A
Stabilizer - Type2 switching
Stabilizer - Type step-down

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Cyprus, Finland, Greece, Ireland, Malta, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR


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